I got this computer around last Thanksgivings. I never had any problems with Starcraft 2. Then all of a sudden about 2 weeks ago, SC2 has become unplayable. I get around 3 FPS during any action whatsoever (even just watching the workers mine at the beginning of the game drops FPS to sub-5). I don't think it's my internet connection since everything else I do on the internet is fine, and I get this FPS drop during the single player which is offline play. I've asked on several other sites about how to fix this problem, and have tried the following actions with no success:

run malware/adware cleaners

updating video card driver

Checked computer temperatures (i used nzxt CAM, and it said cpu temp was 69 C and gpu was 51 C)